Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 301233
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
531 AM PDT SAT JUL 30 2016

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 7-14 MPH.        W 18-25 MPH.
TRANSPORT WINDS               SW 7-14 MPH.        SW 16-26 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 31        POOR.

VENTILATION INDEX (CATEGORY)  119 (POOR).         864 (GOOD).
OUTLOOK FOR SUN JUL 31        315 (FAIR).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-9 MPH.          W 11-15 MPH.
TRANSPORT WINDS               W 4-9 MPH.          W 11-16 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 31        POOR.

VENTILATION INDEX (CATEGORY)  66 (POOR).          575 (FAIR).
OUTLOOK FOR SUN JUL 31        235 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW-W 2-5 MPH.       NW 8-13 MPH.
TRANSPORT WINDS               SW-W 2-5 MPH.       W 14-19 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 31        GOOD.

VENTILATION INDEX (CATEGORY)  47 (POOR).          774 (GOOD).
OUTLOOK FOR SUN JUL 31        303 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      308 (FAIR)
ELLENSBURG    636 (GOOD)
GOLDENDALE    353 (FAIR)
TRI-CITIES    670 (GOOD)
WALLA WALLA   891 (GOOD)
YAKIMA        511 (FAIR)
BEND          503 (FAIR)
PRINEVILLE    593 (FAIR)
ENTERPRISE    911 (GOOD)
HERMISTON     862 (GOOD)
JOHN DAY      623 (GOOD)
LA GRANDE     837 (GOOD)
MADRAS        659 (GOOD)
MEACHAM       800 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       601 (GOOD)
SENECA        631 (GOOD)
THE DALLES    560 (FAIR)

METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS.  BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.

THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTP://WWW.WRH.NOAA.GOV/PDT/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
$$



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